SN4 ""

No	Pattern	Freq
1	at the [noun sg] [prep]	44606
2	at the [noun sg] [prep]	44604
3	at the [noun sg] of	39413
4	at the [noun sg] of	39413
5	at the end [prep]	9415
6	at the time [prep]	2957
7	at the beginning [prep]	2252
8	at the top [prep]	1631
9	at the age [prep]	1444
10	at the [noun sg] in	1288
11	at the [noun sg] in	1288
12	at the back [prep]	1254
13	at the expense [prep]	1089
14	at the bottom [prep]	1077
15	at the start [prep]	1061
16	at the heart [prep]	884
17	at the university [prep]	837
18	at the centre [prep]	800
19	at the [noun sg] on	587
20	at the foot [prep]	587
21	at the [noun sg] on	587
22	at the [noun sg] with	580
23	at the [noun sg] with	580
24	at the level [prep]	558
25	at the [noun sg] for	544
26	at the [noun sg] for	544
27	at the head [prep]	492
28	at the [noun sg] to	424
29	at the [noun sg] to	424
30	at the edge [prep]	377